Ronald C. Baird

University of South Florida

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George Jumper

United States Air Force Research Laboratory

Susan Peterson

University of Rhode Island

R. Eugene Turner

Louisiana State University

Matthias Groß

Helmholtz Centre for Environmental Research

Thomas L. Hopkins

University of South Florida St. Petersburg

Dean M. Milliken

Florida Institute of Oceanography

Zev Naveh

Technion – Israel Institute of Technology

Hamid Johari

California State University, Northridge

Michael P. Weinstein

Ohio University

David K. Loomis

East Carolina University

Cooperative Institutions

Woods Hole Oceanographic Institution

Louisiana State University

National Oceanic and Atmospheric Administration

Oregon State University

Engineering Associates (United States)

University of Washington

University of South Florida St. Petersburg

Florida State University

Worcester Polytechnic Institute

University of California System

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Encounter models and Deep-Sea fishes: numerical simulations and the mate location problem in Sternoptyx diaphana (Pisces, Sternoptychidae)

Deep Sea Research Part I Oceanographic Research Papers (1995)

Ronald C. Baird George Jumper

10.1016/0967-0637(95)00022-x

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Numerical Simulation of Environmental Modulation of Chemical Signal Structure and Odor Dispersal in the Open Ocean

Chemical Senses (1996)

Ronald C. Baird Hamid Johari George Jumper

Hydrodynamic models were used to simulate the dispersal of a model fish pheromone at three characteristic depth regimes (mixed layer, and 300 and 1000 m) of broad extent in the open ocean at the scale of individual organisms. The models were calibrated to experimental studies of dye dispersal at these depths and the goldfish pheromone system was used as the model odorant. There are profound differences in the time course and geometry of dispersing odor fields with depth. Below the thermocline odor fields spread primarily as horizontal patches with dispersal rates about five times slower at 1000 m as compared to 300 m. In the mixed layer, odors disperse rapidly in all directions and the maximum radial distance of spread of a physiologically active odor patch is less than half of the deep water value. Increases in the threshold sensitivity of olfactory receptors can greatly increase effective odor field size. Chemical signals impact the encounter dynamics among oceanic organisms by affecting the distance at which the target (emitting) individual is perceived. Perception distances due to olfactory cues can be significantly greater than for other senses in pelagic oceanic environments. Environment specific modulation of odor fields then affects the signal properties and therefore utility of chemoreception that, in turn, bear on encounter probabilities and transfer functions in oceanic ecosystems. Chem. Senses 21: 121–134, 1996.

Electroreception

10.1093/chemse/21.2.121

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Citations (12)

Sea Grant Fellows

Science (1996)

Ronald C. Baird

Article MetricsDownloadsCitationsNo data available.01JulAugSepOctNovDec40Total6 Months12 MonthsTotal number of downloads for the most recent 6 whole calendar months.

10.1126/science.271.5254.1348.a

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Managing coastal resources in the 21st century

Frontiers in Ecology and the Environment (2007)

Michael P. Weinstein Ronald C. Baird David O. Conover Matthias Groß Jozef Keulartz

Coastal ecosystems are increasingly dominated by humans. Consequently, the human dimensions of sustainability science have become an integral part of emerging coastal governance and management practices. But if we are to avoid the harsh lessons of land management, coastal decision makers must recognize that humans are one of the more coastally dependent species in the biosphere. Management responses must therefore confront both the temporal urgency and the very real compromises and sacrifices that will be necessary to achieve a sustainable coastal ecosystem, one that is economically feasible, socially just, and ecologically sound.

Ecosystem-Based Management

Coastal Management

Coastal ecosystem

10.1890/1540-9295(2007)5[43:mcrits]2.0.co;2

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A messenger‐operated closing trawl

Limnology and Oceanography (1973)

Thomas L. Hopkins Ronald C. Baird Dean M. Milliken

Details on construction and operation of a relatively inexpensive closing Tucker trawl are presented. The trawl is opened and closed with a mechanical messenger‐actuated release device. Flow is monitored by a meter which records only when the net is fishing. Trawls of 1.8 × 1.8 m and 1.8 × 3.6 m in mouth dimension have been constructed; both can be fished on 3/16‐inch (4.8 mm) hydrowire.

10.4319/lo.1973.18.3.0488

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Location by Olfaction: A Model and Application to the Mating Problem in the Deep-Sea Hatchetfish Argyropelecus hemigymnus

The American Naturalist (1991)

George Jumper Ronald C. Baird

We develop a model for mate location by olfaction and apply it to reproductive behavior in the deep-sea hetchetfish Argyropelecus hemigymnus. The model includes diffusion theory to model the geometry of the region of detectable pheromone around the female, kinetic theory to medel the motion of the males prior to detection of a pheromone field, and a Monte Carlo search routine to estimate the time to locate the female after detection. The model yields results that are consistent with our present understanding of the biology of A. hemigymnus. The success of olfactory communication systems is strongly dependent on diffusion velocity, which is a function of depth in the ocean. The receiving organism must have low detection thresholds and high dynamic sensitivity to changes in odor concentration to use olfaction effectively for long-range detection and location of advertising females. Olfaction appears to be critical to reproductive success and therefore viability for many dispersed and sparse populations living in deep ocean environments.

10.1086/285295

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Citations (34)

Sea Grant Fellows

Science (1996)

Ronald C. Baird

10.1126/science.271.5254.1348-a

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Citations (0)